2 say, say.

(3) learning: learning.

(4) Time study: review in a timely, timely and punctual manner; Study, review, review.

(5) One: Pronouns refer to the old knowledge learned.

(6) say: pass the meaning of "yue" and be happy.

(7) Hu: The auxiliary word is equivalent to "horse". "Don't worry", that is, "don't you", is a rhetorical question.

(8) friends: friends, like-minded people.

(9) from: from.

(10) Le: Happy.

(1 1) and: The turning conjunction is equivalent to "que".

(12): angry, angry.

(13) No: indicates judgment.

(14) Gentleman: a person with moral cultivation.